curl/lib/curl_ctype.c

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3.5 KiB
C
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DOES_CONVERSIONS
#undef _U
#define _U (1<<0) /* upper case */
#undef _L
#define _L (1<<1) /* lower case */
#undef _N
#define _N (1<<2) /* decimal numerical digit */
#undef _S
#define _S (1<<3) /* space */
#undef _P
#define _P (1<<4) /* punctuation */
#undef _C
#define _C (1<<5) /* control */
#undef _X
#define _X (1<<6) /* hexadecimal letter */
#undef _B
#define _B (1<<7) /* blank */
static const unsigned char ascii[128] = {
_C, _C, _C, _C, _C, _C, _C, _C,
_C, _C|_S, _C|_S, _C|_S, _C|_S, _C|_S, _C, _C,
_C, _C, _C, _C, _C, _C, _C, _C,
_C, _C, _C, _C, _C, _C, _C, _C,
_S|_B, _P, _P, _P, _P, _P, _P, _P,
_P, _P, _P, _P, _P, _P, _P, _P,
_N, _N, _N, _N, _N, _N, _N, _N,
_N, _N, _P, _P, _P, _P, _P, _P,
_P, _U|_X, _U|_X, _U|_X, _U|_X, _U|_X, _U|_X, _U,
_U, _U, _U, _U, _U, _U, _U, _U,
_U, _U, _U, _U, _U, _U, _U, _U,
_U, _U, _U, _P, _P, _P, _P, _P,
_P, _L|_X, _L|_X, _L|_X, _L|_X, _L|_X, _L|_X, _L,
_L, _L, _L, _L, _L, _L, _L, _L,
_L, _L, _L, _L, _L, _L, _L, _L,
_L, _L, _L, _P, _P, _P, _P, _C
};
int Curl_isspace(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & _S);
}
int Curl_isdigit(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & _N);
}
int Curl_isalnum(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_N|_U|_L));
}
int Curl_isxdigit(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_N|_X));
}
int Curl_isgraph(int c)
{
if((c < 0) || (c >= 0x80) || (c == ' '))
return FALSE;
return (ascii[c] & (_N|_X|_U|_L|_P|_S));
}
int Curl_isprint(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_N|_X|_U|_L|_P|_S));
}
int Curl_isalpha(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_U|_L));
}
int Curl_isupper(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_U));
}
int Curl_islower(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_L));
}
int Curl_iscntrl(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_C));
}
#endif /* !CURL_DOES_CONVERSIONS */